NFPA 25: Inspection, Testing, and Maintenance of Water-Based Fire Protection Systems. Advances in sprinkler technology, use of new techniques, and changing industry experience all have an impact on how and with what frequency testing, inspection, and maintenance procedures should be performed. To assure that your sprinkler systems will perform as required when they are needed most, you need the up-to-date information that only the new 2002 edition of NFPA 25 can provide! Relied on nationwide, this important Standard provides contractors, building owners, fire marshals, and others with a comprehensive program to ensure that all water-based extinguishing system components are in peak operating condition. Totally restructured so it's easy to use, this edition brings you the latest provisions for preventing such conditions as inoperable components, microbiologically influenced corrosion, corrosion, and leaking from compromising sprinkler operation. Includes: - Testing requirements for sprinklers now address environmental conditions in which the sprinkler is installed that may negatively affect the integrity of the system or its components. - New testing requirements for dry sprinklers have been added. - Testing of water flow switches and supervisory switches has been changed from quarterly to semi-annually. - 5-year inspection of water tanks is now permitted without the need for draining the tank. - Ultrasonic (UT) and radiographic (RT) examinations are now permitted to meet obstruction investigation requirements. - Additional guidance on recognition and treatment strategies for Micro-biologically Influenced Corrosion (MIC). - Fire pump performance criteria is included to assist in evaluating annual pump test results. English. 120 pages, 2002.